Quote:
Originally Posted by B-1 Pilot
Source for where 5w-30 is not recommended? Did 700 miles post breakin with this oil as this is the ONLY oil German M-qualified dealerships use at the moment. Worked just fine in the 50-65F weather. When I get back to craptacuoar Texas, I will switch to 0w-40....
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BMW germany recommend 0-30 mate thats why all the BMW dealers here have switched to it, that says it all does it not.
You can still use 5-30 or 0-40 it's your choice.
Funny thing is once warmed up 0W-40 is less viscous (heavier) than 5W-30.
PS) 50/65Dec F is NOT COLD.